A pressure-proof and displacement-proof adjustable surgical lateral position surgery multifunctional fixing device

Abstract

The application discloses a kind of prevent pressure and prevent displacement adjustable surgical lateral position surgery multifunctional fixing device, the present application is by using the high-density sponge of shao hardness 20-30 arch-shaped support module integrated molding, cooperate with the adjusting plate embedded in bottom surface groove, the adjustable structure of slidable connection sliding plate and spring drive semicircular fixed rod, can be flexibly adapted to different body size patients, realize the support to patient trunk, limb, effectively avoid intraoperative body displacement to the adverse effects of surgical field exposure and operation accuracy, simultaneously with the characteristics of arch structure and high-density sponge evenly disperses local pressure, significantly reduce the risk of complications such as pressure ulcer, nerve injury in long time lateral position surgery, provide reliable body position fixation and safety protection guarantee for surgical safety development, while improving patient intraoperative comfort and medical staff operation convenience.

Description

Technical Field

[0001] This invention belongs to the field of surgical auxiliary instruments technology, and particularly relates to a multifunctional fixation device for anti-pressure and anti-displacement adjustable lateral decubitus surgery. Background Technology

[0002] In thoracic surgery, orthopedics, and urology, the lateral decubitus position is a commonly used surgical position. Currently, the methods for fixing patients in this position are relatively traditional, primarily using cotton positioning pads combined with restraint straps and bandages for fixation. In some cases, fixed metal braces are used for auxiliary positioning. However, long-term clinical practice has shown that existing fixation structures have many inherent defects and cannot meet the precise, safe, and humane needs of modern surgery. Specific problems include poor fixation stability and a tendency for displacement. Traditional positioning pads lack precise positioning structures, relying solely on passive fixation through close contact and support. The tightness of restraint straps and bandages is difficult to control precisely. During surgery, factors such as surgical manipulation, instrument contact, and slight patient body sliding can easily lead to displacement or deviation of the patient's trunk, pelvis, and lower limbs, resulting in deviations in the surgical position angle, especially in procedures such as hip replacement and spinal surgery. For surgical procedures requiring extremely high precision in patient positioning, deviations can directly affect the prosthesis implantation angle and intraoperative alignment, significantly reducing surgical accuracy and even leading to errors. The stability and safety of the patient's positional fixation directly impact surgical field exposure, operational precision, and patient safety. Currently used lateral decubitus fixation devices often suffer from poor adaptability, failing to meet the needs of patients with different body types, thus affecting surgical procedures. Their pressure distribution is also inadequate; prolonged lateral decubitus surgery can lead to continuous pressure on local tissues, increasing the risk of complications such as pressure sores and nerve damage. Furthermore, their high manufacturing cost increases the burden on healthcare providers. Therefore, we propose a pressure-resistant, anti-displacement, adjustable, multifunctional fixation device for lateral decubitus surgery. Summary of the Invention

[0003] (1) Technical problem to be solved: Provide a multifunctional fixation device for anti-pressure and anti-displacement adjustable surgical lateral decubitus position to solve the problem mentioned in the background art.

[0004] (2) The technical solution adopted in this invention is as follows: A multifunctional fixation device for anti-pressure and anti-displacement adjustable lateral decubitus surgery includes a support module with an arched structure. Two grooves are formed on the bottom surface of the support module, and an adjustment plate is embedded in the inner wall of each groove. A sliding hole is provided at the lower end of each adjustment plate, and a sliding plate is slidably connected within the sliding hole. An adjustment component connects the sliding plate to the adjustment plate, and a support base plate is fixedly connected to the bottom surface of the sliding plate. The support module is integrally molded from high-density sponge material, and its Shore hardness is 20-30.

[0005] A further technical solution is that the adjusting component includes fixing grooves on both sides of the sliding plate, a spring fixedly connected to the inner wall of the fixing groove, a fixing rod fixedly connected to the other end of the spring, one end of the fixing rod being semi-circular, multiple adjusting grooves being provided on the side wall of the adjusting plate, the semi-circular end of the fixing rod being located inside one of the adjusting grooves, and the size of the fixing rod being adapted to the size of the adjusting groove on the adjusting plate.

[0006] A further technical solution is that the inner wall of the arched structure of the support module is fixedly connected with several reinforcing ribs.

[0007] A further technical solution is that a number of memory metal wires are inserted through the support module, and the number of memory metal wires are distributed in a linear array within the support module.

[0008] A further technical solution is that the surface of the support module is provided with several ventilation holes.

[0009] A further technical solution is that the surface of the support module is covered with a protective sleeve, which is a genuine leather sleeve. The surface of the protective sleeve is coated with a medical-grade waterproof and stain-resistant coating. A cover curtain is sewn onto one side of the protective sleeve. Two adsorption sheets are fixedly connected to one side of the cover curtain. A magnetic sheet is fixedly connected to the side of the protective sleeve near the cover curtain. The magnetic sheet and the adsorption sheet are adsorbed together. A soft, skin-friendly pad is adhered to the inner wall of the arched structure of the protective sleeve. The soft, skin-friendly pad is made of a blend of pure cotton, spandex, and memory foam. A sealing gasket is adhered to one side of the cover curtain. One side of the sealing gasket is fitted to the protective sleeve.

[0010] A further technical solution is to round the corners of the support module.

[0011] A further technical solution is that a number of anti-slip strips are fixedly connected to the bottom surface of the protective sleeve, and the number of anti-slip strips are distributed in a linear array on the bottom surface of the protective sleeve.

[0012] A further technical solution is that a number of massage bumps are fixedly connected to the surface of the protective cover, and the massage bumps are made of medical rubber.

[0013] (3) Due to the adoption of the above technical solution, the beneficial effects of the present invention are: This invention utilizes an integrated arched support module made of high-density sponge with a Shore hardness of 20-30, combined with an adjustable structure featuring an adjustable plate embedded in a groove on the bottom, a slidably connected sliding plate, and a spring-driven semi-circular fixing rod. This allows for flexible adaptation to patients of different body types, providing support for the patient's torso and limbs. It effectively avoids the adverse effects of intraoperative body displacement on surgical field exposure and operational accuracy. Simultaneously, the arched structure and the properties of the high-density sponge evenly distribute local pressure, significantly reducing the risk of complications such as pressure sores and nerve damage during prolonged lateral decubitus surgery. This provides reliable positioning and safety protection for safe surgical procedures, while also improving patient comfort and ease of operation for medical staff.

[0014] This invention significantly enhances the structural strength and deformation resistance of the support module by setting several reinforcing ribs on the inner wall of the arched structure, disperses the external pressure borne by the arched structure, and prevents it from collapsing or cracking under stress, thereby improving the stability and service life of the support module and ensuring the operational reliability of the overall device. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the support module in this invention; Figure 3 This is a partial structural diagram of the support module in this invention; Figure 4 This is a schematic diagram of the structure of the adjusting plate in this invention; Figure 5 This is a schematic diagram of the protective sleeve in this invention; Figure 6 This is a partial structural diagram of the protective sleeve in this invention; Figure 7 This is a partial structural diagram of the protective sleeve in this invention; Figure 8 This is a cross-sectional view of the sliding plate in this invention.

[0016] In the diagram: 1. Support module; 2. Groove; 3. Adjustment plate; 4. Sliding plate; 5. Support base plate; 6. Spring; 7. Fixing rod; 8. Reinforcing rib; 9. Memory metal wire; 10. Ventilation hole; 11. Protective cover; 12. Cover curtain; 13. Adsorption sheet; 14. Magnetic sheet; 15. Sealing gasket; 16. Rounded corner; 17. Anti-slip strip; 18. Soft and skin-friendly pad; 19. Massage protrusion; 20. Adjustment groove; 21. Fixing groove; 22. Sliding hole. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0018] like Figures 1-8 As shown. A multifunctional fixation device for anti-pressure and anti-displacement adjustable lateral decubitus surgery includes a support module 1: the support module 1 has an arched structure and is integrally molded from high-density sponge material. The support module 1 has a Shore hardness of 20-30 (a Shore hardness of 20-30 for the support module 1 can support an adult's single leg, support the lower leg, and relax varicose veins; while a sofa with a Shore hardness of 35-45 can support an adult weighing 60-80kg). The bottom surface of the support module 1 has two grooves 2, and the inner wall of the grooves 2 is embedded with an adjustment plate 3. A sliding plate 4 is connected to the adjustment plate 3 with an adjustment component. The adjustment component includes several adjustment grooves 20 on the surface of the adjustment plate 3, and the adjustment plate 3 is slidably connected to the adjustment component. The sliding plate 4 has a sliding hole 22 at the lower end of the adjusting plate 3. A supporting base plate 5 is fixedly connected to the bottom surface of the sliding plate 4. Fixing grooves 21 are opened on both sides of the sliding plate 4. A spring 6 is fixedly connected to the inner wall of the fixing groove 21 of the sliding plate 4. The specific connection method of the spring 6 is as follows: the sliding plate 4 has a recessed fixing groove 21. A cylindrical boss is reserved inside the fixing groove 21. The outer diameter of the boss is slightly larger than the inner diameter of the spring 6. One end of the spring 6 is aligned with the positioning boss in the fixing groove 21. The spring is axially squeezed by a tooling press so that the inner ring of the end of the spring 6 forms an interference fit with the positioning boss. The other end of the spring 6 is fixedly connected to a fixing rod 7. One end of the fixing rod 7 is semi-circular. The size of the fixing rod 7 is adapted to the size of the adjusting groove 20 on the adjusting plate 3. By employing an integrated arched support module 1 made of high-density sponge with a Shore hardness of 20-30, combined with an adjustable structure consisting of an adjustment plate 3 embedded in the bottom groove 2, a slidably connected sliding plate 4, and a semi-circular fixing rod 7 driven by a spring 6, this system can flexibly adapt to patients of different body types, providing support for the patient's torso and limbs. This effectively avoids the adverse effects of intraoperative body displacement on surgical field exposure and operational accuracy. At the same time, the arched structure and the characteristics of high-density sponge evenly distribute local pressure, significantly reducing the risk of complications such as pressure sores and nerve damage during prolonged lateral decubitus surgery. This provides reliable positioning and safety protection for safe surgery, while also improving patient comfort and ease of operation for medical staff.

[0019] The sliding plate 4 is a one-piece engineering plastic sheet. When medical staff need to adjust the height, they can feel the semi-circular fixing rod 7 in the support module 1. The support module has a Shore hardness of 20-30. When the medical staff applies pressure at a single point, the support module will deform. Pressing the fixing rod 7 will cause the spring to compress within the fixing groove. Because the sliding plate 4 is a one-piece plastic sheet, it will produce a slight deformation when pressed, causing the spring-loaded fixing rod 7 to slide out of the fixing groove of the sliding plate 4 and be pulled upwards onto the sliding plate. The fixing rod will automatically spring into another adjustment groove 20 on the sliding plate 4 under the reaction force of the spring, thereby achieving height adjustment of the support module 1. The high-hardness sponge has no internal skeleton. With a Shore hardness of 20-30 and the combination of reinforcing ribs, it is sufficient to provide single-leg support for adult patients.

[0020] like Figure 2 and Figure 3 As shown, the inner wall of the arched structure of the support module 1 is fixedly connected with several reinforcing ribs 8. By setting several reinforcing ribs 8 (the reinforcing ribs 8 are independent parts, which are later bonded and fixed to the inner wall of the arched sponge; the reinforcing ribs 8 are made of high-rigidity plastic ribs (glass fiber reinforced PP), which can greatly enhance the arched structure and make it less prone to breakage) on the inner wall of the arched structure, the structural strength and deformation resistance of the support module 1 can be significantly enhanced, the external pressure borne by the arched structure can be distributed, and it can be prevented from collapsing or cracking under stress, thereby improving the stability and service life of the support module 1 and ensuring the operational reliability of the overall device.

[0021] like Figure 2 and Figure 3 As shown, several shape memory metal wires 9 (specifically, nickel-titanium shape memory alloy, whose function is to provide external force-triggered deformation recovery, rebound support, self-healing shaping, and non-permanent deformation after repeated bending; copper-based shape memory alloy wire can be used as an alternative material, which also has shape memory effect, and is less expensive than nickel-titanium shape memory alloy, but has a shorter service life) are linearly arrayed within the support module 1. The linear array of shape memory metal wires 9 inserted within the support module 1 gives it excellent shape memory and shaping capabilities, allowing it to stably maintain its preset shape after conforming to the patient's body curves and achieving positional fixation. This prevents deformation due to external forces during surgery or slight changes in the patient's position, ensuring the durability and reliability of the fixation effect and providing a more stable positional fixation and safety guarantee for safe surgery.

[0022] like Figure 2 As shown, the surface of the support module 1 has several ventilation holes 10. The ventilation holes 10 on the surface of the support module 1 can promote air circulation between the device and the patient's skin, reduce local stuffiness and moisture, further improve the patient's comfort during the operation, and reduce the risk of discomfort or skin problems caused by long-term pressure and stuffiness on the skin.

[0023] like Figure 2 and Figure 5 As shown, the surface of the support module 1 is covered with a protective sleeve 11, which is made of genuine leather and coated with a medical-grade waterproof and stain-resistant coating. A cover curtain 12 is sewn onto one side of the protective sleeve 11, and two magnetic adsorption sheets 13 (made of soft magnetic rubber sheets, sewn onto the cover curtain 12, and working with the magnetic adsorption sheets to wrap the support module 1 inside the protective sleeve 11) are fixedly connected to one side of the cover curtain 12. A magnetic adsorption sheet 14 is fixedly connected to the side of the protective sleeve 11 near the cover curtain 12, and the magnetic adsorption sheet 14 is adsorbed and connected to the magnetic adsorption sheet 13. The genuine leather protective sleeve 11 covering the surface of the support module 1 can reduce friction and irritation between the support module 1 and the patient's skin, improving contact comfort. At the same time, the surface of the protective sleeve 11 is coated with a medical-grade waterproof and stain-resistant coating, which facilitates cleaning and disinfection by medical staff and reduces the risk of cross-infection.

[0024] like Figure 2 As shown, the corners of the support module 1 are rounded by 16. By rounding the corners of the support module 1, it is easier to fit the support module 1 into the protective sleeve 11, thus improving the convenience of the device.

[0025] like Figure 6 and 7 As shown, a number of anti-slip strips 17 are fixedly connected to the bottom surface of the protective sleeve 11, and the anti-slip strips 17 are distributed in a linear array on the bottom surface of the protective sleeve 11. The linear array of anti-slip strips 17 fixedly connected to the bottom surface of the protective sleeve 11 can effectively enhance the friction between the device and the operating table surface, prevent the device from slipping during the operation, further ensure the stability of the patient's position, and provide double protection for the accuracy of the surgical operation.

[0026] like Figure 6 and 7 As shown, a soft, skin-friendly pad 18 is adhered to the inner wall of the arched structure of the protective sleeve 11. This soft, skin-friendly pad is made of a blend of pure cotton, spandex, and memory foam. The soft, skin-friendly pad 18, made of a blend of pure cotton, spandex, and memory foam, adheres to the inner wall of the arched structure of the protective sleeve 11. It possesses excellent skin-friendliness, breathability, and rebound cushioning properties, further conforming to the patient's body curves, reducing local pressure, and minimizing skin friction damage. Simultaneously, the soft, skin-friendly pad 18 provides a certain degree of warmth, enhancing the patient's comfort.

[0027] like Figure 7As shown, a sealing gasket 15 is adhered to one side of the cover curtain 12. The sealing gasket is made of silicone and its main function is to form a relatively sealed space between the cover curtain 12 and the protective sleeve 11. This prevents bacteria or other substances from adhering to the support module 1 through the gap between the cover curtain 12 and the protective sleeve 11 during medical use, thus preventing mold growth. The protective sleeve 11 can be directly removed from the cover curtain 12 for cleaning. One side of the sealing gasket 15 is attached to the protective sleeve 11. The tight fit between the sealing gasket 15 and the protective sleeve 11 on one side of the cover curtain 12 enhances the sealing performance after the cover curtain 12 is closed, reduces contamination of the support module 1 by external impurities, further improves the hygiene of the support module 1, and reduces the risk of cross-infection.

[0028] like Figure 2 and Figure 5 As shown, the protective sleeve 11 has several massage bumps 19 fixedly connected to its surface. The massage bumps 19 are made of medical rubber. The several medical rubber massage bumps 19 fixedly connected to the surface of the protective sleeve 11 can provide gentle pressure to the patient's contact area during the fixation of body position, help promote local blood circulation, and further reduce the risk of complications such as pressure sores and nerve numbness by synergistic pressure dispersion effect, while improving the patient's contact comfort.

[0029] Working principle: The support module 1 of this device has an arched hollow structure, which can accommodate one leg of the patient placed in the arched cavity, and the other leg is supported on the upper surface of the support module 1 to achieve leg-split body position support. Medical staff first make size adaptation adjustments according to the thickness of the patient's legs and the distance between the limbs. Press the semi-circular fixing rods 7 driven by springs 6 on both sides of the sliding plate 4 in the groove 2 on the bottom of the support module 1, so that the fixing rods 7 disengage from the corresponding adjustment grooves 20 on the adjustment plate 3. Horizontally push the sliding plate 4 to slide along the adjustment plate 3, adjust it to the position that matches the patient's leg shape and leg placement height, and then release the press. The spring 6 rebounds and resets, driving the semi-circular fixing rods 7 to lock into the corresponding adjustment grooves 20, completing the support height locking and fixation. The support module 1 is an arched body integrally cast from high-density sponge with a Shore hardness of 20-30. Memory metal wires 9 are linearly arrayed inside the arched cavity and the upper surface. When placing the patient's limb, one leg is tucked into the hollow arch of the support module 1, while the other leg rests on the top surface of the arch. The sponge matrix, combined with the memory metal wires, can simultaneously conform to the physiological contours of the two legs and torso to achieve flexible shaping. This ensures that the support surface fits the limb perfectly, while the mechanical structure of the hollow arch disperses the local pressure on the leg, avoiding single-point compression.

[0030] The edges of the support module 1 are all rounded 16, and the entire support module is completely fitted into the genuine leather protective cover 11. The protective cover 11 is matched with an arched shape, and its inner wall is lined with soft, skin-friendly pads 18 made of pure cotton and spandex blended fabric composite memory foam, which respectively fit the skin of the affected limb inside the arched cavity and the other affected limb supported by the top surface of the arch, so as to achieve the effects of cushioning, shock absorption, skin-friendly warmth. The bottom surface of the protective cover 11 is equipped with linear array rubber anti-slip strips 17 to increase the friction coefficient between the entire device and the operating table surface, and prevent the support device from sliding or the patient's legs from shifting during the operation. Multiple sets of medical rubber massage bumps 19 are arranged on the outer side of the protective cover 11, corresponding to the contact areas of the two legs respectively; a magnetic cover curtain 12 is arranged on the side of the protective cover. The adsorption sheet 13 on the cover curtain and the magnetic adsorption sheet 14 on the side of the protective cover are attracted to each other to complete the closure. A sealing gasket 15 is attached to the inner side of the cover curtain. After closing, the sealing gasket 15 is tightly attached to the edge of the protective cover, forming a sealed protective space for the legs stored in the arched inner cavity, isolating them from disinfectant and bodily fluid contamination.

[0031] During the surgical procedure, the integrated reinforcing ribs 8 of the arched inner wall of the support module 1 significantly enhance the overall structural rigidity and deformation resistance, preventing collapse or cracking when bearing the weight of the patient's single leg or under external pressure during surgery. The linearly arranged memory metal wires 9 continuously lock the pre-adjusted arched support shape, ensuring stable positioning of both legs even with slight, unconscious swaying of the patient's limbs, preventing positional shifts that could affect the surgical procedure. The surface of the support module 1 features evenly distributed ventilation holes 10, creating air convection channels in the contact support area of ​​the legs to dissipate heat and moisture, preventing skin irritation and sweating. The outer protective sleeve 11 is coated with a medical-grade waterproof and stain-resistant coating, allowing for quick wiping and cleaning of blood and irrigation fluid during surgery, reducing the risk of cross-infection. The rubber massage bumps 19 distributed at the contact points of the legs provide gentle and intermittent pressure on the soft tissues of the legs during static positioning, helping to improve local blood circulation and effectively alleviate the risk of limb numbness and pressure sores during long-term surgery. Combined with the high rebound cushioning performance of the inner soft and skin-friendly pad 18, it provides stable and comfortable intraoperative support and protection for the two legs that are placed apart throughout the procedure.

[0032] It should be noted that in this paper, relational terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations.

[0033] Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

[0034] The above are merely preferred embodiments of the present invention.

Claims

1. A multifunctional fixation device for anti-pressure and anti-displacement adjustable lateral decubitus surgery, characterized in that, Includes a support module (1), which is an arched structure. The bottom surface of the support module (1) has two grooves (2). The inner wall of the grooves (2) is embedded with an adjustment plate (3). The lower end of the adjustment plate (3) is provided with a sliding hole (22). A sliding plate (4) is slidably connected in the sliding hole (22). The sliding plate (4) is connected to the adjustment plate (3) with an adjustment component. The bottom surface of the sliding plate (4) is fixedly connected with a support base plate (5).

2. The anti-pressure and anti-displacement adjustable multifunctional fixation device for lateral decubitus surgery according to claim 1, characterized in that, The support module (1) is integrally molded from high-density sponge material, and the Shore hardness of the support module (1) is 20-30.

3. The anti-pressure and anti-displacement adjustable multifunctional fixation device for lateral decubitus surgery according to claim 1, characterized in that, The adjusting component includes a fixing groove (21) on both sides of the sliding plate (4). A spring (6) is fixedly connected to the inner wall of the fixing groove (21). A fixing rod (7) is fixedly connected to the other end of the spring (6). One end of the fixing rod (7) is semi-circular. Multiple adjusting grooves (20) are provided on the side wall of the adjusting plate (3). The semi-circular end of the fixing rod (7) is located inside one of the adjusting grooves (20). The size of the fixing rod (7) is adapted to the size of the adjusting groove (20) on the adjusting plate (3).

4. The anti-pressure and anti-displacement adjustable multifunctional fixation device for lateral decubitus surgery according to claim 1, characterized in that, The inner wall of the arched structure of the support module (1) is fixedly connected with several reinforcing ribs (8).

5. The anti-pressure and anti-displacement adjustable multifunctional fixation device for lateral decubitus surgery according to claim 1, characterized in that, A number of memory metal wires (9) are inserted through the support module (1), and the number of memory metal wires (9) are distributed in a linear array within the support module (1).

6. The anti-pressure and anti-displacement adjustable multifunctional fixation device for lateral decubitus surgery according to claim 1, characterized in that, The surface of the support module (1) has several ventilation holes (10).

7. The anti-pressure and anti-displacement adjustable multifunctional fixation device for lateral decubitus surgery according to claim 1, characterized in that, The surface of the support module (1) is covered with a protective sleeve (11), which is a genuine leather sleeve. The surface of the protective sleeve (11) is coated with a medical-grade waterproof and stain-resistant coating. A cover curtain (12) is sewn on one side of the protective sleeve (11). Two adsorption sheets (13) are fixedly connected to one side of the cover curtain (12). A magnetic adsorption sheet (14) is fixedly connected to the side of the protective sleeve (11) near the cover curtain (12). The magnetic adsorption sheet (14) is adsorbed to the adsorption sheet (13). A soft skin-friendly pad (18) is adhered to the inner wall of the arched structure of the protective sleeve (11). The soft skin-friendly pad is made of pure cotton, spandex blend and memory foam. A sealing gasket (15) is adhered to one side of the cover curtain (12). One side of the sealing gasket (15) is in contact with the protective sleeve (11).

8. The anti-pressure and anti-displacement adjustable multifunctional fixation device for lateral decubitus surgery according to claim 1, characterized in that, The corners of the support module (1) are rounded (16).

9. The anti-pressure and anti-displacement adjustable multifunctional fixation device for lateral decubitus surgery according to claim 1, characterized in that, The bottom surface of the protective sleeve (11) is fixedly connected with a number of anti-slip strips (17), and the number of anti-slip strips (17) are distributed in a linear array on the bottom surface of the protective sleeve (11).

10. The anti-pressure and anti-displacement adjustable multifunctional fixation device for lateral decubitus surgery according to claim 1, characterized in that, The protective sleeve (11) has several massage bumps (19) fixedly connected to its surface. The massage bumps (19) are made of medical rubber.

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